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Assessing and Communicating Risk:
A Partnership to Evaluate a Superfund Site on Leech Lake Tribal Lands



 

You will need Adobe Acrobat Reader installed on your computer in order to read the PDF files available in this report.

Environmental Justice Reports

This folder contains the reports from the U.S. EPA Environmental Justice project "Assessing and Communicating Risk: A Partnership to Evaluate a Superfund Site on Leech Lake Tribal Lands." Click on these files to go directly to the reports. This folder contains:

An Executive Summary (Executive Summary.pdf)
Groundwater Panel Report (Groundwater Panel Report.pdf)
Human Health Risk Assessment Panel Report (Human Health Risk Report.pdf)
Ecological Risk Assessment Panel Report (Eco Risk Report.pdf)
Appendix 1 (Appendix 1.pdf)
Appendix 2 (Appendix 2.pdf)
Appendix 3 (Appendix 3.pdf)
Site Aerial Photo (jpeg)

Chemicals of Concern

Information was collected from the Agency for Toxic Substances and Disease Registry (ATSDR) Web Site (http://www.atsdr.cdc.gov/) on contaminants that may be associated with the Superfund Site located in Cass Lake, MN. A sub-folder was created for 17 contaminants/chemicals of concern. Each sub-folder contains three files - 1. ToxFAQ, 2. Public Health Statement, and 3. Toxicity Profile. Explanations of each follow.

1. Tox FAQ (Adobe Acrobat file -- 4 to 5 pages each) Toxic Substance Frequently Asked Questions

The ATSDR Tox FAQs is a summary about the hazardous substance. It was developed by the ATSDR Division of Toxicology. Information for this series is excerpted from the ATSDR Public Health Statements and Toxicological Profiles (see below). Each fact sheet serves as a quick and easy to understand guide. Answers are provided to the most frequently asked questions (FAQs) about exposure on human health. To go directly to the ToxFAQ for a particular hazardous substance, just click on it.

Arsenic

DDT

Nitrophenols

Chlorophenols

Dioxins

PAHs

Chromium

Fuel Oils

PCBs

Copper

Gasoline

Pentachlorophenol

Creosote

Hydraulic Fluids

Phenol

Cresols

Mercury

2. Public Health Statements (Adobe Acrobat file -- 4 to 18 pages each)

The ATSDR Public Health Statements are summaries about hazardous substances developed by the ATSDR Division of Toxicology. The information in these Public Health Statements has been taken from Chapter One of their respective ATSDR Toxicological Profiles (see below). Each Public Health Statement serves as a summary for that complete Toxicological Profile. The Public Health Statements provide information in a question and answer format which address the most frequently asked questions about exposure to hazardous substances found around hazardous waste sites and the effects of exposure on human health. To go directly to the Public Health Statement for a particular hazardous substance, just click on it.

Arsenic

DDT

Nitrophenols

Chlorophenols

Dioxins

PAHs

Chromium

Fuel Oils

PCBs

Copper

Gasoline

Pentachlorophenol

Creosote

Hydraulic Fluids

Phenol

Cresols

Mercury

3. Toxicity Profiles (Adobe Acrobat file -- 150 to 950 pages each)

By Congressional mandate, the Agency for Toxic Substances and Disease Registry (ATSDR) produces "toxicological profiles" for hazardous substances found at National Priorities List (NPL) sites. These hazardous substances are ranked based on frequency of occurrence at NPL sites, toxicity, and potential for human exposure. Toxicological profiles are developed from a priority list of 275 substances. So far, 261 toxicological profiles have been published or are under development as "finals" or "drafts for public comments." To go directly to the Toxicity Profile for a particular hazardous substance, just click on it.

Arsenic

DDT

Nitrophenols

Chlorophenols

Dioxins

PAHs

Chromium

Fuel Oils

PCBs

Copper

Gasoline

Pentachlorophenol

Creosote

Hydraulic Fluids

Phenol

Cresols

Mercury

Helpful Information

There are four Adobe Acrobat files in the "Helpful Information" Folder. Click on the file to go directly to it. The folder contains:

1. Concentrations.pdf -- This file contains information to help understand the units used to describe chemical concentrations. It helps describe the differences between parts per million (ppm), parts per billion (ppb), parts per trillion (ppt). This may be very useful to have handy when reviewing data collected at the site.

2. Conversion Tables.pdf -- This file helps convert between metric and English units.

3. Glossary of Terms.pdf -- This file (which came from the ATSDR Web Site) provides definitions for many of the terms frequently used in discussing contamination and health risks.

4. Chemical Hazard Label.pdf -- This file describes the National Fire Protection Association (NFPA) standard system for indicating the health, flammability, and reactivity hazards of chemicals. In addition, a special precaution symbol may be used where necessary. The hazard label for each contaminant is found in the ToxFAQ file for each chemical/contaminant.

We hope the information contained in this report is
helpful and useful to you.

If you have any problems with this web page or have any questions regarding its content, please feel free to contact:

Jeff Gunderson
Minnesota Sea Grant
(218) 726-8715
mailto:jgunder1@umn.edu


 

 

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 www.seagrant.umn.edu /water/report/leech.html modified November 17, 2009